EC2 Purchasing Options Infographic

EC2 Purchasing Options

Optimize your cloud spend by matching your workload characteristics to the right AWS pricing model.

01. The Decision Inputs

Predictability

Is your traffic steady, spikey, or completely unpredictable?

Duration

Do you need the server for minutes, months, or 3+ years?

Flexibility

Can you switch instance families or regions mid-term?

Budget

Are you prioritizing lowest cost or zero commitment?

02. The Savings Spectrum

COMMITMENT DISCOUNT % On-Demand (0%) Savings Plans (Up to 72%) Reserved (Up to 75%) Spot (Up to 90%)

Note: Spot instances offer the highest discount but can be reclaimed by AWS at any time.

On-Demand

Highest Flexibility

Pay for compute capacity by the second. No long-term commitments. Best for short-term, irregular workloads.

Spot Instances

Deepest Discount

Spare AWS capacity at up to 90% off. AWS can terminate these with a 2-minute warning. Best for stateless, fault-tolerant jobs.

Reserved Instances (RI)

1 or 3 Year Term

Standard: Highest discount, fixed attributes.
Convertible: Change instance family/type mid-term.

Savings Plans

Modern Standard

Commit to a consistent amount of usage (e.g., $10/hour). Automatically applies across EC2, Fargate, and Lambda.

03. Key Facts Summary

Option Payment Best For… Risk Level
On-Demand No Upfront New applications, unpredictable spikes Low
Spot No Upfront Batch processing, CI/CD, Data analysis High (Interruption)
Standard RI Upfront/Partial/None Steady-state, predictable workloads Medium (Locked-in)
Savings Plans Upfront/Partial/None Multi-service usage, evolving architecture Medium (Dollar commitment)

© 2023 Cloud Architecture Education | Data visualization for AWS Professionals

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